电力工程技术2017，Vol.36Issue(1)：47-53,7.
混合直流双桥换相失败机理及抑制措施研究
Research on the Mechanism and Suppression Method of Double Bridge Discontinuous Commutation Failure in Hybrid HVDC
摘要
Abstract
With the development of high voltage direct current(HVDC) transmission technology, hybrid multi-infeed direct current transmission become a development trend. The mechanism of double bridge commutation failure of line commutated converter based high voltage direct current ( LCC-HVDC ) in hybrid double-infeed system is analysized. And the major influence factors of double bridge continuous and discontinuous commutation failure are distinguished. Through simulation under different AC system fault extent and trigger time, the effect of these two factors on commutation failure types is studied, and it is found that the AC voltage waveform distortion under slight fault is the main cause of double bridge discontinuous commutation failure. Then the control parameter of voltage source converter based high voltage direct current(VSC-HVDC) is optimized by Simplex algorithm to suppress double bridge discontinuous commutation failure of LCC-HVDC in slight fault.关键词
混合直流/双桥换相失败/波形畸变/单纯形算法Key words
hybrid HVDC/double bridge commutation failure/waveform distortion/Simplex algorithm分类
信息技术与安全科学引用本文复制引用
李猛,夏成军,杜兆斌..混合直流双桥换相失败机理及抑制措施研究[J].电力工程技术,2017,36(1):47-53,7.基金项目
国家自然科学基金（51577071）；广东省自然科学基金 （）
